Just called here. No one on the line. Stayed a vacant for a long time then disconnected.

Message said I won a $2500 voucher to Cancun. Obviously a scam.

Calls, but no messages.

This is a fraud campaign currently active in Canada using a series of Iristel VOIP numbers.  The objective is to obtain your credit card number.  If you attempt to "opt out" your number will be confirmed as live and added to a suckers list for repeated future calls.